The so-called "food" is a celestial body that was another celestial body or its Heiying Yanzhe all or part of the astronomical scene.
所谓"食"就是指一个天体被另一个天体或其黑影全部或部分掩遮的天文景象。
Astronomers % are involved in the observation, analysis and research of various astronomical phenomena, such as the movements of celestial bodies like moons, planets, stars and galaxies.
天文学家的工作涉及到观察、分析以及研究各种各样的天文现象，比如月亮、行星、恒星、银河等天体的运动。
Ancient mariners, whether they be Vikings or South Sea Islanders, would navigate with astronomical bearings by reading the celestial bodies as well as landmarks.
古代的航海家，不管是维京人还是南太平洋岛民，都会携带天文仪出海，以观天象和地标。
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